fix bad yaml

Author: conceptdev

BasicTableAndroid/README.md

@@ -6,7 +6,7 @@ languages:
 - csharp
 products:
 - xamarin
-- extensions:
+extensions:
     tags:
     - ui
 urlFragment: basictableandroid

BatchStepSensor/README.md

@@ -6,7 +6,7 @@ languages:
 - csharp
 products:
 - xamarin
-- extensions:
+extensions:
     tags:
     - androidkitkat
 urlFragment: batchstepsensor

BorderlessButtons/README.md

@@ -6,7 +6,7 @@ languages:
 - csharp
 products:
 - xamarin
-- extensions:
+extensions:
     tags:
     - ui
 urlFragment: borderlessbuttons

CardEmulation/Readme.md

@@ -1,17 +1,17 @@
 ---
-name: Xamarin.Android - CardEmulation Sample
+name: Xamarin.Android - Card Emulation Sample
 description: "Demonstrates the use of the new Host Card Emulation (HCE) APIs in Android 4.4 (KitKat)"
 page_type: sample
 languages:
 - csharp
 products:
 - xamarin
-- extensions:
+extensions:
     tags:
     - androidkitkat
 urlFragment: cardemulation
 ---
-# CardEmulation Sample
+# Card Emulation Sample
 
 This sample demonstrates the use of the new Host Card Emulation (HCE) APIs in Android 4.4 (KitKat).